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Last seen: Aug 18, 2026
@dak51, thanks for the update. Which brand heat pump is it, and I can’t believe the replacement is now already making a noise. As you said, the optima...
I'm horrible with cars, and even worse with EVs. Does Tesla have its own proprietary charging standard and is their tech bidirectional?
@saz, as batalto has asked, are you at the point where you feel the issue is down to settings and controls? Am I correct in assuming that the heating ...
@saz, in addition to all the previous advice, you need to check which consumer code your installer is a member of (HIES or RECC) then make contact to ...
@derek-m, you always give me some very useful homework to do 😀. I have no idea whether they were calibrated and I don't think I have any certificates ...
@derek-m, good points. Because we have a bivalent system, we've had to install two separate metres that are exclusively connected to our heat pump so ...
@saz, so just to be clear, Vaillant have "fixed" the circulation pump (by getting rid of the sealant) and cleared your system out to nullify any block...
I think that's @witchcraft.
@witchcraft, thanks for the update and I'm very interested to see how this all plays out.
I ran an experiment this week to see what our COP and electricity consumption would be like by varying flow rates (45C and 40C):/p> As the winter co...
@saz, who was the original installer? Are you at liberty to reveal who it was?
I’ve just reread the thread and you have had a Vaillant engineer come out. This engineer that just visited, were they from a completely new company?
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Degrees of Separation
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RE: Do I add Air Con or MVHR to existing A2W ASHP?
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RE: PV and battery long payback - sense check query
@jamespa I was just commenting on the speed, not sug...
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Readers here please note that Derril Water and many oth...
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RE: Is it the house or the equipment?
- Comfort and silence (for heating) - Heat storage wi...
By bobflux , 11 hours ago
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RE: Advice on Vaillant Sensocomfort
Oops, I meant Sensocomfort (the UI to the controls)
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RE: Heat Pump Training vs. Real-World Installation
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RE: Flushing system, cleaning and inhibitor
While skim reading a manual for our Vaillant HW tank, I...
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Of course, what do you expect, human beings are human b...
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I'm not sure why you would want to make it more difficu...
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